Final answer:
In Agile project management, the single representative of stakeholders is known as the Product Owner, who is responsible for managing the product backlog and ensuring that the team meets the stakeholders' needs.
Step-by-step explanation:
In an Agile project, the single representative of stakeholders is called the Product Owner. The Product Owner has a pivotal role in Agile teams, acting as the voice of the stakeholders, and is responsible for defining and prioritizing the product backlog.
They make sure that the Agile team is delivering value to the business by liaising with the stakeholders to gather their requirements and feedback, then articulating this to the development team.